Tomb of the Traitor

{t}: Add {c} to your mana pool.
{2}{b}{b}, {t}: Sacrifice a permanent, then each other player may sacrifice a permanent that shares a type with it. Each player who doesn't loses 5 life.
"The stories and incantations on these walls are best ignored and unspoken, even by my family, and they're the ones who built these catacombs." - Ruga, Exiled Agent